CVE-2026-3593 Heap use-after-free vulnerability in BIND 9 DNS-over-HTTPS implementation

A use-after-free vulnerability exists within the DNS-over-HTTPS implementation. This issue affects BIND 9 versions 9.20.0 through 9.20.22, 9.21.0 through 9.21.21, and 9.20.9-S1 through 9.20.22-S1. BIND 9 versions 9.18.0 through 9.18.48 and 9.18.11-S1 through 9.18.48-S1 are NOT affected...

ISC BIND 9 竞争条件问题漏洞

ISC BIND 9 is a domain name system software developed by the ISC organization. ISC BIND 9 has a race condition vulnerability, which stems from race conditions that lead to reusing resources after release, potentially causing undefined behaviors. The following versions are affected: 9.20.0 to...

DEBIAN-CVE-2026-3591

A use-after-return vulnerability exists in the named server when handling DNS queries signed with SIG0. Using a specially-crafted DNS request, an attacker may be able to cause an ACL to improperly mismatch an IP address. In a default-allow ACL denying only specific IP addresses, this may lead to...